Berg, J.M. <br/><br/>
Proceedings of the Congress held in New Delh, 24-28 March 1985. 

 - 475p. 
<br/><br/><label>ISBN: </label>0-416-40650-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--Congresses